Thank you for reporting this to Ubuntu. This might be related to your graphics driver. Could you try the nv driver to see if the same thing happens? Also, bug 398893 is open to update the nvidia-173 drivers to the latest version in Karmic.
Thank you for reporting this to Ubuntu. This might be related to your graphics driver. Could you try the nv driver to see if the same thing happens? Also, bug 398893 is open to update the nvidia-173 drivers to the latest version in Karmic.